﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bai06_Sharp
{
    class Polygon
    {
        protected int width, height;
        public Polygon(int a)
        {
            width = a;
        }
    
        public void SetValues(int a, int b)
        {
            width = a;
            height = b;
        }
    }
    class Rectangle : Polygon
    {
        public Rectangle(int w, int h):base(w)
        {
            height = h;
        }
        public int area()
        {
            return(width*height);
        }
    }
}

